<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>圆形图片</title>
		<style type="text/css">
			#user{
				width: 250px;
				height: 250px;
				border-radius: 125px;
				background-image: url(images/demo.png);
			}
		</style>
	</head>
	<body>
		<h3>利用css3样式对div圆角，最终实现圆</h3>
		<div id = "user">
		
		</div>
	</body>
</html>
